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 Effect of taller tires on re gearing (ie 48 or 50?)

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allan p

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PostSubject: Effect of taller tires on re gearing (ie 48 or 50?)   Wed Nov 26, 2014 11:57 pm

Currently in the midst of giving a new-to-me stock X a makeover. I've got new tires on the way (Shinko 244's) and have moved on to replacing the rear sprocket.

I know the common consensus 'round here is to go with a 13/48 setup but my new (taller) tires had me wondering what effect they had on gearing.

Long story short... my brain damn near exploded and I'm now more confused than when I started.

To get the desired effect of 13/48 with the taller tires do I go even bigger (50?) than the recommended 48 or smaller?
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YZEtc

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PostSubject: Re: Effect of taller tires on re gearing (ie 48 or 50?)   Thu Nov 27, 2014 7:22 am

A taller tire will give you taller gearing, but, in my opinion, just try it and then decide.
I wouldn't be surprised if you feel it's just fine.

On my own WR250X, I used Michelin Pilot Power tires (it was a street bike for me) with 13/49 sprockets.
I felt it was perfect for the bike.
I did not measure or compare the circumference of the Pilot Powers to the original Bridgestone tires.
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allan p

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PostSubject: Re: Effect of taller tires on re gearing (ie 48 or 50?)   Thu Nov 27, 2014 12:46 pm

I went ahead and bought a Renthal 49t sprocket and 112 link chain...

Hopefully I'll like the setup with the taller(ish) tires.

I just want a little more pep, I don't plan on doing too much highway riding with this bike.
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DWK




PostSubject: Re: Effect of taller tires on re gearing (ie 48 or 50?)   Fri Nov 28, 2014 1:40 am

I've got a 50 tooth with the relatively tall Dunlop 606 rear tire. I use a 13t front for mild dirt roads and a 12t front for the steep, rocky, nasty stuff. 112 links, like you.

Dave
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